function getCookie(name) { //ÄíÅ° ºÒ·¯¿À±â, üũ 
	var Found = false; 
	var start, end; 
	var i = 0; 
	//alert(document.cookie );

	while (i <= document.cookie.length) { 
		start = i; 
		end = start + name.length; 
		
		if (document.cookie.substring(start, end) == name) { 
			Found = true; 
			break; 
		} 
		i++; 
	} 
	
	if(Found == true) { 
		start = end + 1; 
		end = document.cookie.indexOf(";", start); 
		if (end < start) 
		end = document.cookie.length; 
		return document.cookie.substring(start, end); 
	} 
	return ""; 
} 

function setCookie( name, value, expiredays ) { //ÄíÅ° ÀúÀå 
	var todayDate = new Date(); 
	todayDate.setDate( todayDate.getDate() + expiredays ); 
	document.cookie = name + "=" + escape( value ) + "; expires=" + todayDate.toGMTString() + ";" 
	//alert(document.cookie );
}